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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT89-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：18 V
- Current - Output：70 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
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Overview
The TLVH431BQPK is an adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range of 1.24 V to 18 V and provides an output current capability of 70 mA with a minimum cathode current of 100 µA. The device features a tight initial accuracy tolerance of ±0.5%. It is housed in a SOT-89-3 surface-mount package (TO-243AA) and supports an extended operating temperature range from -40°C to 125°C.
Feature Summary
- Provides high-precision voltage regulation with ±0.5% initial accuracy tolerance for stable reference applications.
- Supports wide operating current ranges, enabling efficient performance across varying load conditions.
- Designed for robust operation in industrial environments with an extended temperature rating up to 125°C.
Applications
- Precision analog-to-digital converter (ADC) reference sources
- Microcontroller power supply monitoring circuits
- Battery management system voltage sensing
Procurement Notes
Verify the specific suffix QPK corresponds to the SOT-89-3 package variant when sourcing. Confirm RoHS3 compliance status for environmental regulations. Check manufacturer documentation for any recent PCN updates regarding marking or design changes affecting this specific part number.
Selection Notes
Select this component when ±0.5% accuracy is required compared to standard ±1% or ±1.5% variants. Ensure the SOT-89-3 footprint fits the PCB layout constraints. Verify that the 18 V maximum input voltage aligns with the system supply rails.
Part Context
This part belongs to the TLVH431 family of low-voltage adjustable shunt regulators. It shares functional similarities with other series members but is distinguished by its specific ±0.5% accuracy grade and SOT-89-3 packaging, differentiating it from standard tolerance versions like the TLVH431QPK.
Replacement Considerations
The TLVH431AQPK offers ±1% accuracy in the same package. The TLVH431CDBVRG4 provides similar functionality in a SOT-23-5 package. Verify pinout compatibility before substituting with non-TI equivalents.
